package com.puman.filter;

import java.io.IOException;

import javax.servlet.Filter;
import javax.servlet.FilterChain;
import javax.servlet.FilterConfig;
import javax.servlet.ServletException;
import javax.servlet.ServletRequest;
import javax.servlet.ServletResponse;

public class EncodeFilter implements Filter{
	private String encoding =  null;
	
	@Override
	public void destroy() {
		encoding = null;
	}

	@Override
	public void doFilter(ServletRequest request, ServletResponse response,
			FilterChain filterChain) throws IOException, ServletException {
	if(null!=encoding && !"".equals(encoding)){
		response.setContentType("text/html; charset="+encoding);
		request.setCharacterEncoding(encoding);
	}
		filterChain.doFilter(request, response);
	}

	@Override
	public void init(FilterConfig filterConfig) throws ServletException {
		encoding = filterConfig.getInitParameter("encoding");
	}

}
